remove geteltorito and mtools from lbmk

we needed these for extracting intel vga roms from
lenovoo updates, for t480, very briefly. about an hour
after i pushed that patch, mate kukri fixed libgfxinit
and then i removed the vgarom integration because it
wasn't needed anymore.

however, i forgot to remove geteltorito/mtools from
dependencies. some distros like fedora were problematic
about it.

the best thing about bugs is when you don't have to fix them.

Signed-off-by: Leah Rowe <leah@libreboot.org>

include/vendor.sh

@@ -181,8 +181,7 @@ apply_me11_deguard_mod()
 
 extract_archive()
 {
-	geteltorito "$1" > "$2/vendor.img" || \
-	    innoextract "$1" -d "$2" || python "$pfs_extract" "$1" -e || 7z x \
+	innoextract "$1" -d "$2" || python "$pfs_extract" "$1" -e || 7z x \
 	    "$1" -o"$2" || unar "$1" -o "$2" || unzip "$1" -d "$2" || return 1
 
 	[ ! -d "${_dl}_extracted" ] || cp -R "${_dl}_extracted" "$2" || \